British Admiralty Chart no. 293.42. Original survey in 1843 by Captain A.T.E. Vidal, Royal Navy. Original publication date of July 18, 1849. "J. & C. Walker, Sculpt. 1865." Reprinted with small corrections in 1918 and 1928 and zinc enamel plate print in 1940. Insets: Formigas 1:12130 ; Dollabarat 1:12130 ; Sao Lourenco Bay 1:24.480 ; Villa Do Porto Bay 1:24,480. Multiple sea-level profile illustrations of portions of Santa Maria. Blue ink stamp, "This chart is for use of aircraft only, Hydrographic Department, Admiralty." This digital image has been created from an original, paper chart held at the Canadian Warplane Heritage Museum, accession number 997.178.017 (drawer 1).